Dump-wagon.



No. 878,907. v PATENTED FEB. 11, 1908. J. STIFTER.

v DUMP WAGON. APPLIOVATION II LED AUG. 15, 1907.

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dam, (5mg? No. 878,907.; PATENTED FEB. 11, 1908. J. STIFTER.

DUMP WAGON. APPLICATION FILED AUG. 15, 1907.

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PATENTED FEB. 11

J STIFTER DUMP WAGON. APPLICATION FILED AUG. 15, 1907,

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JOSEPH sTIFTER, OF PITTSBURG, PENNSYLVANIA.

DUMP-WAGON.

Specification-of Letters Patent.

Patented Feb. 11 1908.

Application filed August 15, 1907- Serial No. 383.604.

To all whom it may concern:

Be it known that I, JOSEPH STIFTER, a citizen of the United States of America, residing at Pittsburg, in the county of Allegheny and State of Pennsylvan a, have invented certain new and useful Improvements in Dum Wagons, of which the following is a s cc cation, reference being had therein to t e accompanying drawing. I

This invention relates to improvements in dum wagons, and more particularly to that type liaving hinged bottom doors, commonly known as drop doors.

My invention aims to provide positive and reliable means for holding the hinged doors of a dump wagon in a closed osition, especially when a load is carried by ,t e Wagon.

My invention aims to provide a dump wagon ca able of carrying a large load without acci entally discharging the same, a trouble similar to this having been ex erienced with dum wagons on account 0 the weak and imper ect locking means used for holding dro doors in closed position. With my wagon use novel means for closing the drop doors ofthe wagon and retaining said doors in a closed osition, said means being easily and quic y released to precipitate the load carried by the wagon.

Further, my invention aims to dispense with the chains and mechanism heretofore employed for elevatin the rear ends of drop doors, I having foun it only necessary to elevate the front ends and provide means for locking the rear ends, the elevating mechanism besides the locking means being manipulated and controlled from the drivers seat of the wagon.

The detail construction entering into my invention will be presently described and then specifically pointed out in the appended claims.

In the drawings: Figure 1 is an elevation of my dump wagon, parts thereof being broken away, Fig. 2 is a longitudinal sectional view of the wagon, Fig. 3 is a view of the rear end of the wagon, partly broken away, Fig. 4 is a cross sectional view of the wagon, taken on the line IVIV of Fig. 2 looking in the direction of the arrow of said figure, Fig. 5 is a perspective view of a detached fifth wheel bearing, and Fig. 6 is a pisplective view of a detached inverted fifth w ee My wagon consists of two vertical hopper cut away and supported by the front truck of the wagon, while the rear ends of the ho per sides are supported by a rear truck. The front truck comprises an axle 3, wheels 4, a draft frame 5 strapped to said axle, a fifth wheel bearing 6, and a fifth wheel 7, said fifth wheel being pivotally mounted in the bearing 6 by a bolt 8 and revolubly mounted in a depending frame 9 carried by the forward end of the wagon body. A standard 10 carried by the draft frame 5 and provided with a revoluble roller 11 is used for supporting the depending frame 9 of the wagon. The rear truck comprises an axle 12, wheels 14, bolster blocks 15 for the rear seats of the hopper sides -1 and 2, said sides being secured to the bolster blocks 15 and the axle 12 by clefts 16.

Between the hopper sides 1 and 2 is arranged a front inclined wall 17 and a rear inclined wall 18, these walls together with the hopper sides 1 and 2 forming a hopper 19, having its bottom closed by doors 20 and 21, hinged as at 22 to straps 23, secured to the hopper sides 1 and 2. The upper ends of the straps are bent outwardly, as at 24, for supporting inclined side-boards 25 upon the upper edges of the hopper sides 1 and 2. The meeting edges of the hinged doors 20 and 21 are provided with longitudinally disposed angle bars 26 having their forward ends protruding beyond the doors and their rear ends cut away, as at 27, the purpose of which will presently appear.

Journaled in brackets 28 carried by the forward end wall 17 is a shaft 29, said shaft protruding through the hopper side 1 and carrying a ratchet wheel 30 and a pivoted bifurcated lever 31, said leverhaving a pawl 32 pivoted therein for engaging the ratchet wheel 30 and moving the same when the lever 31 is oscillated. The shaft 29 between the bearings 28 is provided with two chains 33, similarly wound upon said shaft. The chains 33 besides being connected to the shaft 29 pass through a strap 34, carried by the forward end wal 17 and are connected as at 35, to the forward ends of the angle bars 26. Through the medium of the lever 31 the doors 20 and 21 are elevated, and to lock the shaft 29 so as to retain the doors in a closed position, the outer face of the hopper side 1 is provided with a pivoted latch 36 having a depending arm 37. The hopper side 1 is also provided with a bracket 38 in which the lever 31 can rest, when the pawl32 is out of en agement with the ratchet wheel 30 and the fever is not being used.

The rear end wall 18 of the ho per is provided with a bearing 39 and in t is bearing and the hopper side 1 is j ournaled a shaft 40, said shaft having a crank end 41 extending through a link 42, carried by a locking block 43, pivotally carried by two straps 44, secured to the rear axle 12 of the wagon. The outer end of the shaft 40 is provided with a crank arm 45 and pivotally connecting with said arm is a rod 46' extending forwardly along the outer side of the hopper and passing through akeeper 47 carried by one of the straps 23 of the hopper side 1. The rod 46 terminates in an inwardly bent end 48, adapted to engage in the notch 49, formed in the pivoted tread lever 50, said lever being pivotally connected to the inner face of the hopper side 1 by a bolt 51. Arranged between the bolt 51 and'the inwardly bent end 48 of the rod 46 is a coil spring 52, the tension of said spring having a tendency to force the rod 46 backward and hold the locking block 46 normally in looking position.

of said doors and prevent the contents of the hopper 19 from being accidentally discharged. Since considerable pressure will be brought to bear upon the doors 20 and 21 by the load within the hopper 19, it may require considerable force to release the look ing block 43, consequently I have provided a' pivoted hand lever 53 for engaging the tread lever 50, whereby the driver of the wagon sitting upon the seat 54 can use foot and hand power for moving the rod 46.

border that the forward ends of the doors 20 and 21 will be simultaneously released with the rear ends of the doors, I provide the rod 46 with an upwardly extending lug 55 for engaging the arm 37 of the latch 36, elevating said latch and releasing the shaft 29.

The weight of the doors 20 and 21, besides the load which they support will unwind the chains 33 upon the shaft 29.

It is thought thatthe operation of releasing the doors 20 and 21 and closing the same vvil be fully understood fromthe foregoing description, and I reserve the right to make such modifications as are permissible by the ap ended claims.

avingnow described my invention what I claim as new, is

1. In a dump wagon, the combination with trucks, of hopper sides carried thereby, hopper endwalls arranged between said hopper sides, hinged doors carried by said hopper sides, angle bars carried by the confronting edges of said doors, a shaft journaled in bearings carried by one of said walls and protruding through one of said hopper sides, a ratchet wheel carried by said shaft, a bifurcated lever loosely mounted upon said shaft and having a pawl to engage said ratchet, chains fastened to said shaft and connecting with the forward ends of said angle bars, a pivoted locking block for engaging the rear ends of said angle bars, a crank shaft carried by one of said hopper end walls for moving said locking block, a rod connecting with said shaft and extending forwardly along one of said hopper sides, a pivoted lever connecting with the forward end of said rod, a latch carried by one of said hopper sides for engaging said ratchet wheel, and a lug carried by said rod for moving said latch and releasing said ratchet wheel.

2. In a dumping wagon the combination with a forward and rear truck, hopper sides carried thereby, front and rear end walls carried by said hopper sides, hinged doors carried by said hopper sides, angle bars carried by the meeting edges of said doors, a shaft'journaled in bearings carried by said forward end wall, chains connecting with said shaft and with the forward ends of said angle bars, a locking block pivotally supported by said rear truck for engaging the rear ends of said angle bars, a crank shaft for moving said locking-block, a rod connecting with said shaft and extending forwardly at the side of one of the hopper sides, means for'winding the first mentioned shaft, and means actuated by the movement of said rod for releasing the first mentioned means.

3. A dumping wagon comprising hopper sides, front and rear end walls, doors hinged to said hopper sides, angle bars carried by the meeting edges of said doors, a locking block for engaging the rear ends of said angle bars, a crank shaft for moving said locking block, a rod connecting with said crank shaft and extending forwardly at the side of one of said hopper sides, movable chains connecting with the forward ends of said angle bars, means for moving said chains, and means actuated by the movement of said rod for releasing said shaft.

4. A dumping wagoncomprising hopper sides, front and rear end walls, doors hinged to said hopper sides, angle bars carried by the meeting edges of said doors, a locking block for engaging the rear ends of said angle bars, chains connecting with the forward ends of said angle bars, a shaft carried by one of said end walls for winding said chains, a rod arranged at the side of one of said hopper sides for moving said locking block, and means actuated by said rod for releasing said shaft.

5. A dumping wagon comprising a hopper, hinged doors carried thereby, chains c011- necting with the forward edges of said doors for raising the same, a locking block engaging the rear edges of said doors for holding said doors in a closed position, a rod arranged at one side of said hopper for moving said locking block; means for moving said chains, said hopper for releasing said locking block,

and means actuated by the movement of said and the first mentioned means. 10 rod for releasing said chains. In testimony whereof I affix my signature 6. In a dumping wagon, the combination in the presence of two witnesses. 5 with a hopper, hinged doors, and means for JOSEPH STIFTER. elevating the forward ends of said doors, of a Witnesses:

locking block for engaging the rear ends of MAX H. SRoLoVrrz,

said doors, and a rod arranged at the side of An. BRAND. 

